若实数x,y满足y=根号2x+1/4x-3根号完+根号2x+1/3-4x根号完+1,求x的平方+xy+x的值
问题描述:
若实数x,y满足y=根号2x+1/4x-3根号完+根号2x+1/3-4x根号完+1,求x的平方+xy+x的值
答
根号下大于等于0
(2x+1)/(4x-3)>=0
(2x+1)/(3-4x)>=0,所以(2x+1)/(4x-3)